I worked as a G.M.C. truck dealership line tech in the '80s and followed the transition of these models. My Chevrolet & GMC Light Truck Owner's Bible (Bentley Publishers) drew from that experience...I can talk diesel, gas, LS engines, modifications, chassis dynamics, axle and powertrain rebuilding. (Late G.M. owners, see my popular AAM 11.5" axle step-by-step article and the 9.25" axle build in HD video at the magazine.) I'm here for troubleshooting and diagnostics discussion, too!

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